Insulator holder for television lead-in wire



Dec. 13, 1955 R. A. cUccARO INSULATOR HOLDER FOR TELEVISION LEAD-IN WIRE Filed March 1, 1954 INVENTOR- ROBERT A. CUCCARO b w/fg ATTORNEY United States Patent "Ofifice 2,727,089 Patented Dec. 13, 1955 INSULATOR HOLDER FOR TELEVISION LEAD-IN WIRE Robert A. Cuccaro, Worcester, Mass., assignor to Parker Metal Goods Company, Worcester, Mass., :1 corporation of Massachusetts Application March 1, 1954, Serial No. 413,000 3 Claims. (Cl. 174-164) This invention relates to a new and improved standoff of the insulator eye type for holding and supporting television lead-in wire, whether U. H. F. or V. H. F., and the principal object of the invention provides an insulated insert particularly adapted for U. H. F., the eye or stand-01f being of metal and holding the lead-in wire insulator at a point remote from any metal of the stand off itself.

Other objects of the invention include the provision of a device of the class described which utilizes exactly the same eye or stand-off which is commonly in use for V. H. F. lead-in wire, and the present insulator which is usable for either U. H. F. or V. H. F. is particularly for use in the conventional stand-off but it is easily used for either conventional type insulators for V. H. F. or for the more recent U. H. F. lead wires.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which- Fig. 1 is a view in elevation of one form of the inven tion shown in use, part being in section;

Fig. 2 is a plan view of the form of the insulator shown in Fig. 1;

Fig. 3 is a bottom plan view thereof;

Fig. 4 is an end view, looking in the direction of arrow 4 in Fig. 2;

Fig. 5 is a section on line 55 of Fig. 1 but showing the pliers in position securing the insulator in place;

Fig. 6 is a plan view of a modified form;

Fig. 7 is an edge view thereof, looking in the direction of arrow 7 in Fig. 6;

Figs. 8, 9 and 10 are sections on the respective lines as indicated in Fig. 6; and

Fig. 11 is a diagrammatic view illustrating how the conventional stand-off or insulator eye grips and closes the present device.

The conventional television lead-in wire stand-off or insulator eye is indicated at 10, and it has a point 12 which is either driven into or screwed into a support 14 such as the side wall of a building. At the other end of the stand-off, it is provided with a ring or loop 16, the same being open as is well known in the art and being adapted to enclose and grip a rubber or plastic insulator such as is well known in the art but does not form any part of the present invention.

The novel insulator of the present invention comprises a relatively elongated rubber or plastic body 18 preferably made of neoprene or the like so that it is resilient and somewhat rubbery in nature. This body is provided with a central longitudinal slot 20 extending almost the entire length thereof from one end 22. The slot terminates inwardly adjacent the opposite end of the device in an enlarged opening 24 which is adapted to hold the lead in wire 26 in either of two different positions, and of course the lead-in wire gains entrance to the enlargement 24 by means of the elongated slot 20.

The insulator 18 may be of any thickness which is desired or convenient and is generally flat on the top and the bottom as is indicated in Figs. 4 and 5. Adjacent the end 22 at one side thereof, the insulator 18 is cut away as at 28 forming an undercut generally circular head or the like 30, the slot extending diametrically through this undercut head. Also the head 30 extends relatively below the bottom surface of the body of the insulator as is indicated in Fig. 4, and the head is inset slightly into the body 18 as by the cut away part 29. In any event, the undercut head 30 is adapted to receive the loop 16 and it may be snapped thereinto as is customary in the art after the lead-in wire has been positioned in the enlargement 24.

The body of the insulator 18 is preferably indented at 32 at either side thereof (see Fig. 2) for the application of the jaws of pliers 34 which engage the loop 16 at diametrically opposite points thereon and are used to squeeze the same to bring the sides of the slot more or less together, see Fig. 5, so as to clamp the lead-in wire in position as illustrated in the diagram in Fig. 11 or in a position at right angles thereto as located in the small notches 36.

The application of this invention will be clear to those skilled in the art. The wire 26 is pushed along slot 20 to be positioned as stated, after the stand-otf 10 has been applied to its support 14. Then the head 30 is snapped into the eye 16 and the pliers are then used to clamp the parts in position. The wire 26 is located completely exteriorly of any metal parts of the stand-01f but at the same time the benefit is achieved that the same stand-off which has been used heretofore for V. H. F. may now be used by the use of the present invention for U. H. F. leadin wire.

In the prior art there have been suggested inventions and designs for holding and supporting U. H. F. lead-in wires but in all cases a completely new and different standoff had to be designed in order to utilize the same.

The modification shown in Figs. 6 to 10 inclusive illustrates an elongated device generally indicated at 38 and this is double-ended, having a pair of enlarged openings 40 which are widely separated but are connected by a slot 42. Also a cross slot 44 leads from slot 42 centrally of the modification and laterally thereof to open at an edge for reception of the respective wires, and it is believed that it is clear how the wires are separately moved into the respective enlargements 40.

At the under side of the central portion of the modified device 38, there is provided an undercut head 46 which is similar to that at 30, but of course is cross-cut by slots 42 and 44 rather than by the single slot 20 as in Figs. 2 and 3. Also enlarged holes 47 are utilized for receiving the jaws 34 of the pliers in order to apply lateral pressure onto the opposite edges of the eye 3.6 which again is utilized in a manner similar to that described above as to the first modification, and holds the double-ended insulator in position in the same manner as above described except that two lead-in wires may be utilized rather than the single one of Figs. 1 to 5 inclusive. There may be provided extra slots at 48 and at other places for providing extra resilience and the device may be shaped as desired to provide for the smallest amount of weight of material necessary in order to make a device of the kind stated.

The Fig. 11 showing illustrates the eye 16 as having been bent inwardly by the pliers which are arranged in the openings or recesses 32 and it is believed that it will be clear how the present invention is utilized in order to firmly support either V. H. F. or U. H. F. lead-in wires. by the use of the same insulator or stand-oil as has been utilized heretofore, whereby it is not necessary to providea completely new device for the U. H. F. lead-in wires.

The slots 48 may be used to hold the flat V. H. F. wire,

and of course such formations may be made in any part of the device to hold such wire.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

l. A device of the class described comprising a fiatsided insulating body for holding wires, said body being elongated and having a slot extending longitudinally thereof inwardly from one end for a major portion of the length thereof, said slot terminating in an enlargement, a generally circular head at one flat side of said body adacent the said one end thereof, said slot intersecting said head and said head providing means for attaching the insulator to a support.

2. A device of the class described comprising a fiatsided insulating body for holding wires, said body being elongated and having a slot extending longitudinally thereof inwardly from one end for a major portion of the length thereof, said slot terminating in an enlargement, a generally circular head at one flat side of said body adjacent the said one end thereof, said slot intersecting said head and said head providing means for attaching the insulator to a support, and a metal insulator eye applied to said head constricting the same and tending to close the slot, said insulator eye having a pointed end for projecting into the support.

3. A device of the class described comprising a flatsided insulating body for holding wires, said body being elongated and having a slot extending longitudinally thereof inwardly from one end for a major portion of the length thereof, said slot terminating in an enlargement, a generally circular head at one fiat side of said body adjacent the said one end thereof, said slot intersecting said head and said head providing means for attaching the insulator to a support, and a metal insulator eye applied to said head constricting the same and tending to close the slot, said insulator eye having a pointed end for projecting into the support, the body of said insulator being provided with lateral recesses at opposite edges thereof in the region of said head whereby pliers may be utilized to constrict the eye of the insulator eye to 20 cause the same to grip and hold the insulator.

No references cited. 

